Sole-edge-trimming tool



(.No Model.)

W. A. BOND.

SOLE EDGE TRIMMING TOOL.

No. 375,334. Patented Dec. 27, 1887.

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UNITED STATES PATENT OFFICE.

WILLIAM A. BOND, OF LYNN, MASSACHUSETTS.

SOL E-EDGE-TRIMMING TOOL.

SPECIFICATION forming part of Letters Patent No. 375,334, dated December2'7, 188?.

Application filed December 16,1886. Serial No. 221,763.

To all whom it may concern:

Be it known that 1, WILLIAM A. Bonn, of Lynn, in the county of Essex andCommonwealth of Massachusetts, have invented certain Improvements inSole-Edge-Trimming Tools, of which the following, taken in connectionwith the accompanying drawings, is a specification.

This invention relates to improvements in edge-trimming tools, and thenature thereof is fully described and specifically claimed hereinafter.

Referring to the drawings, Figurel isafront elevation of the combinedimplement. Fig. 2 is a sectional elevation on line a: x of Fig. 1. Fig.3 is a front side elevation of the rand-cutting knife detached. Fig. 4is an edge View of the rand-cutting knife.

The edge-trimming tool A is of well-known construction, and is known inthe trade as the Bussell edge-trimming tool. It has cutting-edges a, andwhen rapidly revolved the sole-edge is held up to and pressed upon theedges a, which trim oft the surface of the leather and impart to theedge-face of thesole a configuration counter to the shape of thecutting-edges, all of which is well understood by those skilled in theart of making shoes.

It is the object of this invention to provide means, combined with thesaid edge-trimming tool, that shall operate in the rand-crease andperform the operation called randing that is, trimming the inner sideand edge of the sole-the two operations,randing and edgetrimming,beingperformed at one and the same time. To this end I provide a knife-blank,B, composed of sheet metal, having radial arms e, each of which isprovided with a cutting-edge, f, as shown in Fig. 3. Fig. 4 is an edgeview of this cutter, and by reference thereto it will be seen that thecutting-edges f are formed diagonally across the arm, so as to be in aplane inclined relatively to the face of the cutter B. This cutter iscombined with a shield or guard, E, which is also formed of sheet metal,and is chambered out to receive the cutter, as represented in Fig. 2. Itwill be observed that the shield E has its outer edge extended inwardentirely over the end faces of the arms e, and it is also provided withopenings h, constituting throats, to allow the chips taken off (Nomodel.)

by the cutters f to pass readily outward, and

thus prevent the tool from choking up. The

cutter and shield,be ing thus arranged,are combined with theedgetrimming tool, as shown in Fig. 2, the rear face of the edge-toolbeing chambered out to receive the cutter-blank B;

and it also allows the arms 6 to be let into suitable grooves formedacross the tool, as shown in Fig. 2. This arrangement brings the cuttingfaces or edgesfin past the end or.

suitable mechanism. The machines now in the trade are known as theBussell Trimmer, beingwell adapted for this purpose, the tool beingsecured to the arbor by a suitable screw passing through the centralhole, H, and into the end of the shaft or arbor. The shoe is then takenin hand and pressed upward against the tool, the edge of the guard Epasses into the rand-crease, protects the upper-leather from beinginjured by the rand-knife, and further progress of the shoe upwardbrings the edge-face of the sole into contact with the cutting-faces a,which form and fashion the soleedge,while at the same time the inclinedfaces f are cutting from the inner side and along the edge of the sole achip called the rand-chip, and is known as the process of randing. Theamount or quantity to be taken from this portion of the sole is limitedby the inclination of the cutting-faces f as the guard E reaches overthe cutting-arms and presents a smooth non-cutting edge that,bearingupon the side of the sole, prevents the tool from traveling laterallyacross the edge of the sole. This is one of the most important anduseful features of my invention. It allows the shoe to be removed awayfrom the tool for inspection or other purpose, and again to be pressedupon the tool without liability or danger of trimming too much of as arand-chip. It also secures a uniform rand-chip,and therefore leavesmanner to bring all parts of the sole-edge into I inner non-cutting edgeadapted to bear against [0 contact with the trimming-tool. the surfaceof the sole, the guard being adapted What I claim as of myinvention, anddesire to revolve with the trimming-knives, substanto secure by LettersPatent, istially as and for the purposes stated.

In a combined sole-edge trimming and randingtool, the combination of theedge-trimming WILLIAM BOND knives a and the rand-tri1nn1ing knivesf, and\Vitnesses: a circular guard or shield overlapping the ends E. O.PHILLIPS, 0f the rand-trimming knives and having an O. B. TUTTLE.

